No, it just means you wouldn't be counted as 'active' on the site.
It gives a more realistic number of people who are actually using the site, rather than being Facebook and touting '2.96 billion active users' when we all know they're also counting people who haven't logged into the site in 6+ years.
I maxed on OSRS and a week later I got my first infernal cape.
Highlight of my life.